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Diffstat (limited to 'kernel/debug/kdb/kdb_debugger.c')
-rw-r--r--kernel/debug/kdb/kdb_debugger.c25
1 files changed, 18 insertions, 7 deletions
diff --git a/kernel/debug/kdb/kdb_debugger.c b/kernel/debug/kdb/kdb_debugger.c
index be7b33b73d30..328d18ef31e4 100644
--- a/kernel/debug/kdb/kdb_debugger.c
+++ b/kernel/debug/kdb/kdb_debugger.c
@@ -34,6 +34,22 @@ EXPORT_SYMBOL_GPL(kdb_poll_idx);
34 34
35static struct kgdb_state *kdb_ks; 35static struct kgdb_state *kdb_ks;
36 36
37int kdb_common_init_state(struct kgdb_state *ks)
38{
39 kdb_initial_cpu = atomic_read(&kgdb_active);
40 kdb_current_task = kgdb_info[ks->cpu].task;
41 kdb_current_regs = kgdb_info[ks->cpu].debuggerinfo;
42 return 0;
43}
44
45int kdb_common_deinit_state(void)
46{
47 kdb_initial_cpu = -1;
48 kdb_current_task = NULL;
49 kdb_current_regs = NULL;
50 return 0;
51}
52
37int kdb_stub(struct kgdb_state *ks) 53int kdb_stub(struct kgdb_state *ks)
38{ 54{
39 int error = 0; 55 int error = 0;
@@ -94,13 +110,10 @@ int kdb_stub(struct kgdb_state *ks)
94 } 110 }
95 /* Set initial kdb state variables */ 111 /* Set initial kdb state variables */
96 KDB_STATE_CLEAR(KGDB_TRANS); 112 KDB_STATE_CLEAR(KGDB_TRANS);
97 kdb_initial_cpu = atomic_read(&kgdb_active); 113 kdb_common_init_state(ks);
98 kdb_current_task = kgdb_info[ks->cpu].task;
99 kdb_current_regs = kgdb_info[ks->cpu].debuggerinfo;
100 /* Remove any breakpoints as needed by kdb and clear single step */ 114 /* Remove any breakpoints as needed by kdb and clear single step */
101 kdb_bp_remove(); 115 kdb_bp_remove();
102 KDB_STATE_CLEAR(DOING_SS); 116 KDB_STATE_CLEAR(DOING_SS);
103 KDB_STATE_CLEAR(DOING_SSB);
104 KDB_STATE_SET(PAGER); 117 KDB_STATE_SET(PAGER);
105 /* zero out any offline cpu data */ 118 /* zero out any offline cpu data */
106 for_each_present_cpu(i) { 119 for_each_present_cpu(i) {
@@ -125,9 +138,7 @@ int kdb_stub(struct kgdb_state *ks)
125 * Upon exit from the kdb main loop setup break points and restart 138 * Upon exit from the kdb main loop setup break points and restart
126 * the system based on the requested continue state 139 * the system based on the requested continue state
127 */ 140 */
128 kdb_initial_cpu = -1; 141 kdb_common_deinit_state();
129 kdb_current_task = NULL;
130 kdb_current_regs = NULL;
131 KDB_STATE_CLEAR(PAGER); 142 KDB_STATE_CLEAR(PAGER);
132 kdbnearsym_cleanup(); 143 kdbnearsym_cleanup();
133 if (error == KDB_CMD_KGDB) { 144 if (error == KDB_CMD_KGDB) {